Issued Patents All Time
Showing 101–111 of 111 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5513037 | Rear-projection screen and a rear projection image display employing the rear-projection screen | Takahiko Yoshida, Koji Hirata, Masayuki Muranaka, Isao Yoshizaki, Atsuo Osawa | 1996-04-30 |
| 5485308 | Rear-projection type image display apparatus and rear-projection type screen | Koji Hirata, Takahiko Yoshida, Masayuki Muranaka, Atsuo Osawa, Yutaka Matuda | 1996-01-16 |
| 5400114 | Rear-projection screen and a rear projection image display employing the rear-projection screen | Takahiko Yoshida, Koji Hirata, Masayuki Muranaka, Isao Yoshizaki, Atsuo Osawa | 1995-03-21 |
| 5272540 | Temperature compensating lens system for projection television | Koji Hirata, Tooru Numata, Kiyoshi Wada, Masayuki Muranaka, Isao Yoshizaki +2 more | 1993-12-21 |
| 5255122 | Projection lens system for projection type television | Nobuhiro Konuma, Takahiko Yoshida, Masayuki Muranaka, Isao Yoshizaki | 1993-10-19 |
| 5200814 | Video projector with optical color balance | Koji Hirata, Takahiko Yoshida, Tooru Numata, Masayuki Muranaka, Kiyoshi Wada +2 more | 1993-04-06 |
| 5103302 | Optical system for projection type image display device | Takahiko Yoshida, Shigeru Mori, Koji Hirata, Tooru Numata, Isao Yoshizaki +1 more | 1992-04-07 |
| 5066099 | Rear projection screen and method of producing the same | Takahoko Yoshida, Masayuki Muranaka, Koji Hirata, Isao Yoshizaki, Masakuni Teratani +1 more | 1991-11-19 |
| 4948237 | Projection lens system | Koji Hirata, Kyohei Fukuda, Shigeru Mori, Masayuki Muranaka, Isao Yoshizaki +2 more | 1990-08-14 |
| 4824224 | Lens system for a cathode ray tube projection system | Kyohei Fukuda, Shigeru Mori, Koji Hirata, Soichi Sakurai | 1989-04-25 |
| 4638643 | Control system for compressor motor used with air-conditioning unit | Akio Sakazume, Hiroaki Matsushima | 1987-01-27 |